China's Cropland Nitrogen Emissions Increased 2.3-Fold, Driving Time-Dependent Climate Forcing

China's cropland gaseous reactive nitrogen (Ngr) emissions increased by 2.3-fold from 1978 to 2023, with the pace of increase decelerating over time. These emissions currently cause a net cooling effect at the county level but shift to a warming effect over a 100-year horizon.

Researchers evaluated spatiotemporal changes and key drivers of China's cropland gaseous reactive nitrogen (Ngr) emissions from 1978 to 2023, assessing their contribution to climate change.

The abstract focuses on the study's findings regarding reactive nitrogen emissions and their climate impact; it does not provide personal how-to steps.

This study used revised emission estimates and bottom-up mass flow-based approaches to evaluate spatiotemporal changes and drivers of cropland Ngr emissions in China. It assessed climate forcing via multiple metrics.